Table A1.
Summary of complexity metrics used in this study.
| Number | Metrics | Reference |
|---|---|---|
|
| ||
| 1 | Modulation index for leaf speed f = 2 (MIs 2) | Park et al (2014) |
| 2 | Modulation index for leaf speed f = 1 (MIs 1) | Park et al (2014) |
| 3 | Modulation index for leaf speed f = 0.5 (MIs 0.5) | Park et al (2014) |
| 4 | Modulation index for leaf speed f = 0.2 (MIs 0.2) | Park et al (2014) |
| 5 | Modulation index for leaf acceleration f = 2 (MIa 2) | Park et al (2014) |
| 6 | Modulation index for leaf acceleration f = 1 (MIa 1) | Park et al (2014) |
| 7 | Modulation index for leaf acceleration f = 0.5 (MIa 0.5) | Park et al (2014) |
| 8 | Modulation index for leaf acceleration f = 0.2 (MIa 0.2) | Park et al (2014) |
| 9 | Modulation index for total modulation f = 2 (MIt 2) | Park et al (2014) |
| 10 | Modulation index for total modulation f = 1 (MIt 1) | Park et al (2014) |
| 11 | Modulation index for total modulation f = 0.5 (MIt 0.5) | Park et al (2014) |
| 12 | Modulation index for total modulation f = 0.2 (MIt 0.2) | Park et al (2014) |
| 13 | Proportion of leaf speed ranging from 0 to 0.4 cm s−1 (S0–0.4) | Park et al (2015) |
| 14 | Proportion of leaf speed ranging from 0.4 to 0.8 cm s−1 (S0.4–0.8) | Park et al (2015) |
| 15 | Proportion of leaf speed ranging from 0.8 to 1.2 cm s−1 (S0.8–1.2) | Park et al (2015) |
| 16 | Proportion of leaf speed ranging from 1.2 to 1.6 cm s−1 (S1.2–1.6) | Park et al (2015) |
| 17 | Proportion of leaf speed ranging from 1.6 to 2.0 cm s−1 (S1.6–2) | Park et al (2015) |
| 18 | Proportion of leaf acceleration ranging from 0 to 1 cm s−2 (A0–1) | Park et al (2015) |
| 19 | Proportion of leaf acceleration ranging from 1 to 2 cm s−2 (A1–2) | Park et al (2015) |
| 20 | Proportion of leaf acceleration ranging from 2 to 4 cm s−2 (A2–4) | Park et al (2015) |
| 21 | Proportion of leaf acceleration ranging from 4 to 6 cm s−2 (A4–6) | Park et al (2015) |
| 22 | Average leaf speed (ALS) | Park et al (2015) |
| 23 | Standard deviation of leaf speed (SLS) | Park et al (2015) |
| 24 | Average leaf acceleration (ALA) | Park et al (2015) |
| 25 | Standard deviation of leaf acceleration (SLA) | Park et al (2015) |
| 26 | Small aperture score 5 mm (SAS 5 mm) | Crowe et al (2015) |
| 27 | Small aperture score 10 mm (SAS 10 mm) | Crowe et al (2015) |
| 28 | Small aperture score 20 mm (SAS 20 mm) | Crowe et al (2015) |
| 29 | Mean asymmetry distance (MAD) | Crowe et al (2015) |
| 30 | Modulation complex score (MCS) | Mcniven et al (2010) |
| 31 | Leaf sequence variability (LSV) | Mcniven et al (2010) |
| 32 | Aperture area variability (AAV) | Mcniven et al (2010) |
| 33 | Plan area (PA) | Du et al (2014) |
| 34 | Plan irregularity (PI) | Du et al (2014) |
| 35 | Plan modulation (PM) | Du et al (2014) |
| 36 | Plan normalized MU (PMU) | Du et al (2014) |
| 37 | Union aperture area (UAA) | Du et al (2014) |
| 38 | Edge metric (EM) | Younge et al (2012) |
| 39 | Converted aperture metric (CAM) | Götstedt et al (2015) |
| 40 | Edge area metric (EAM) | Götstedt et al (2015) |
| 41 | Circumference/area (C/A) | Götstedt et al (2015) |
| 42 | Average leaf travel distance (LT) | Masi et al (2013) |
| 43 | Combination of LT and MCS (LTMCS) | Masi et al (2013) |
| 44 | Average leaf gap (ALG) | Nauta et al (2011) |
| 45 | Standard deviation of leaf gap (SLG) | Nauta et al (2011) |
| 46 | Average dose rate (ADR) | — |
| 47 | Standard deviation of dose rate (SDR) | — |
| 48 | MU value in first arc (MU 1) | — |
| 49 | MU value in second arc (MU 2) | — |
| 50 | Prescribed dose to primary target per fraction (Dose) | — |
| 51 | Field length at X direction in first arc (Field X1) | — |
| 52 | Field length at Y direction in first arc (Field Y1) | — |
| 53 | Field length at X direction in second arc (Field X2) | — |
| 54 | Field length at Y direction in second arc (Field Y2) | — |
Complexity metrics that have ‘—’ in the reference column can be easily extracted or calculated based on plan information in the TPS.